From: Eric Huang <jinhuieric.huang-5C7GfCeVMHo@public.gmane.org>
To: "Deucher,
Alexander" <Alexander.Deucher-5C7GfCeVMHo@public.gmane.org>,
"amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org"
<amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
Subject: Re: [PATCH] drm/amd/powerply: fix power reading on Fiji
Date: Thu, 29 Mar 2018 15:58:42 -0400 [thread overview]
Message-ID: <d34a1d2c-7f3d-4722-8f80-1ae0cba18df0@amd.com> (raw)
In-Reply-To: <BN6PR12MB18094AA1EA63372A78E03B17F7A20-/b2+HYfkarSEx6ez0IUAagdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
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Right. This is only for Fiji. We should use PPSMC_MSG_GetCurrPkgPwr on
poaris.
Thanks,
Eric
On 2018-03-29 03:54 PM, Deucher, Alexander wrote:
>
> Thanks. Patch is:
>
> Acked-by: Alex Deucher <alexander.deucher-5C7GfCeVMHo@public.gmane.org>
>
> Care to make a patch to use PPSMC_MSG_GetCurrPkgPwr on polaris boards
> so we don't have to worry about the delay on them?
>
>
> Alex
>
> ------------------------------------------------------------------------
> *From:* Huang, JinHuiEric
> *Sent:* Thursday, March 29, 2018 3:40:22 PM
> *To:* Deucher, Alexander; amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
> *Subject:* Re: [PATCH] drm/amd/powerply: fix power reading on Fiji
>
> This reading method is shared with AGT tool only on Fiji, because SMU
> FW doesn't support PPSMC_MSG_GetCurrPkgPwr message on Fiji. But since
> polaris10, PPSMC_MSG_GetCurrPkgPwr has been supported. We also use
> PPSMC_MSG_GetCurrPkgPwr on vega which SMU FW control sampling period.
> Driver will not care about it.
>
>
> Eric
>
>
> On 2018-03-29 03:31 PM, Deucher, Alexander wrote:
>>
>> Do you know what the sampling period is on vega? We should try and
>> be consistent. How about making this selectable via hwmon:
>>
>> power[1-*]_average_interval Power use averaging interval. A poll
>> notification is sent to this file if the
>> hardware changes the averaging interval.
>> Unit: milliseconds
>> RW
>>
>> power[1-*]_average_interval_max Maximum power use averaging interval
>> Unit: milliseconds
>> RO
>>
>> power[1-*]_average_interval_min Minimum power use averaging interval
>> Unit: milliseconds
>> RO
>>
>>
>> Then the user can select the interval they want.
>>
>>
>> Alex
>>
>> ------------------------------------------------------------------------
>> *From:* amd-gfx <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
>> <mailto:amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org> on behalf of Eric
>> Huang <JinHuiEric.Huang-5C7GfCeVMHo@public.gmane.org> <mailto:JinHuiEric.Huang-5C7GfCeVMHo@public.gmane.org>
>> *Sent:* Thursday, March 29, 2018 3:21:52 PM
>> *To:* amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
>> <mailto:amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
>> *Cc:* Huang, JinHuiEric
>> *Subject:* [PATCH] drm/amd/powerply: fix power reading on Fiji
>> Power value is wrong reported by customer. It is a regression by
>>
>> commit a7c7bc4c0c47eaac77b8fa92f0672032df7f4254
>> Author: Rex Zhu <Rex.Zhu-5C7GfCeVMHo@public.gmane.org> <mailto:Rex.Zhu-5C7GfCeVMHo@public.gmane.org>
>> Date: Mon Mar 27 15:32:59 2017 +0800
>>
>> drm/amd/powerplay: reduce sample period time
>>
>> for power readings.
>>
>> Signed-off-by: Rex Zhu <Rex.Zhu-5C7GfCeVMHo@public.gmane.org> <mailto:Rex.Zhu-5C7GfCeVMHo@public.gmane.org>
>> Reviewed-by: Alex Deucher <alexander.deucher-5C7GfCeVMHo@public.gmane.org>
>> <mailto:alexander.deucher-5C7GfCeVMHo@public.gmane.org>
>> Signed-off-by: Alex Deucher <alexander.deucher-5C7GfCeVMHo@public.gmane.org>
>> <mailto:alexander.deucher-5C7GfCeVMHo@public.gmane.org>
>>
>> The theoretical sampling period is from 50ms to 4sec, original 2sec
>> is long but correct, and 20ms is too short. change it to more
>> reasonable 200ms.
>>
>> Signed-off-by: Eric Huang <JinHuiEric.Huang-5C7GfCeVMHo@public.gmane.org>
>> <mailto:JinHuiEric.Huang-5C7GfCeVMHo@public.gmane.org>
>> ---
>> drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 3 ++-
>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
>> b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
>> index a03b7fe..7631d80 100644
>> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
>> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
>> @@ -3377,7 +3377,8 @@ static int smu7_get_gpu_power(struct pp_hwmgr
>> *hwmgr,
>> "Failed to start pm status log!",
>> return -1);
>>
>> - msleep_interruptible(20);
>> + /* Sampling period from 50ms to 4sec */
>> + msleep_interruptible(200);
>>
>> PP_ASSERT_WITH_CODE(!smum_send_msg_to_smc(hwmgr,
>> PPSMC_MSG_PmStatusLogSample),
>> --
>> 2.7.4
>>
>> _______________________________________________
>> amd-gfx mailing list
>> amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org <mailto:amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>
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next prev parent reply other threads:[~2018-03-29 19:58 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-29 19:21 [PATCH] drm/amd/powerply: fix power reading on Fiji Eric Huang
[not found] ` <1522351312-27566-1-git-send-email-JinHuiEric.Huang-5C7GfCeVMHo@public.gmane.org>
2018-03-29 19:31 ` Deucher, Alexander
[not found] ` <BN6PR12MB18093357508F0377D97DCBFCF7A20-/b2+HYfkarSEx6ez0IUAagdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-03-29 19:40 ` Eric Huang
[not found] ` <cb84765d-f9bd-f3d0-973f-13ff15f5b13d-5C7GfCeVMHo@public.gmane.org>
2018-03-29 19:54 ` Deucher, Alexander
[not found] ` <BN6PR12MB18094AA1EA63372A78E03B17F7A20-/b2+HYfkarSEx6ez0IUAagdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-03-29 19:58 ` Eric Huang [this message]
[not found] ` <d34a1d2c-7f3d-4722-8f80-1ae0cba18df0-5C7GfCeVMHo@public.gmane.org>
2018-03-29 20:00 ` Deucher, Alexander
[not found] ` <BN6PR12MB1809CD35DDC84D955B4C847DF7A20-/b2+HYfkarSEx6ez0IUAagdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-03-29 20:30 ` Alex Deucher
2018-03-30 7:52 ` Zhu, Rex
[not found] ` <CY4PR12MB1687D41D30442A05D1663E1FFBA10-rpdhrqHFk06Y0SjTqZDccQdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-03-30 15:08 ` Eric Huang
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